Plastic packaging box and container manufacturing; office equipment sales; metal products sales; home appliances sales; electrical and mechanical equipment sales; hardware products retail; household appliances retail; electronic components retail; wholesale hardware products; Electronic Components Wholesale; home appliances parts sales; computer hardware and software and auxiliary equipment wholesale; plastic products sales; rubber products sales; domestic trade agents; trade brokers; plastic products manufacturing; Rubber products manufacturing; information security equipment sales; intelligent instrument sales; technical glass products sales; electronic special materials sales; electrical accessories sales; electronic products sales; display devices sales; New film materials sales; vacuum coating processing; daily glass products manufacturing; glass fiber and products sales; glass manufacturing; daily glass products sales; optoelectronic devices manufacturing; optoelectronic devices sales; Category I medical device sales; medical mask retail; daily mask (non-medical) sales; ordinary glass container manufacturing; goods import and export; technology import and export